import {
  Card,
  Breadcrumb,
  Form,
  Button,
  Radio,
  Input,
  Upload,
  Space,
  Select
} from "antd";
import { PlusOutlined } from "@ant-design/icons";

import ReactQuill from "react-quill";
import "react-quill/dist/quill.snow.css";
import { Link } from "react-router-dom";
import { useState, useEffect,useRef } from "react";
import { http } from "@/utils";
import "./index.scss";

const { Option } = Select;

const Publish = () => {
  const [channels, setChannels] = useState([]);
  useEffect(() => {
    async function fetchChannels() {
      const res = await http.get("/channels");
      setChannels(res.data.data.channels);
    }
    fetchChannels();
  }, []);
  const [fileList, setFileList] = useState([]);
  // 上传成功回调
  const onUploadChange = (info) => {
      const fileList = info.fileList.map((file) => {
      if (file.response) {
        return {
          url: file.response.data.url,
        };
      }
      return file;
    });
    setFileList(fileList);
    fileListRef.current=fileList
  };
  //图片数量
  const [imgCount, setImgCount] = useState(1);
 // 1. 声明一个暂存仓库
 const fileListRef = useRef([])
  const changeType = (e) => {
    const count = e.target.value;
    setImgCount(count);
    if (count === 1) {
      // 单图，只展示第一张
      const firstImg = fileListRef.current[0]
      setFileList(!firstImg ? [] : [firstImg])
    } else if (count === 3) {
      // 三图，展示所有图片
      setFileList(fileListRef.current)
    }
  };
  //发布文章

    const onFinish = async (values) => {
    // 数据的二次处理 重点是处理cover字段
    const { channel_id, content, title, type } = values
    debugger
    const params = {
      channel_id,
      content,
      title,
      type,
      cover: {
        type: type,
        images: fileList.map(item => item.url)
      }
    }
    await http.post('/mp/articles?draft=false', params)
  }

  return (
    <div className="publish">
      <Card
        title={
          <Breadcrumb separator=">">
            <Breadcrumb.Item>
              <Link to="/">首页</Link>
            </Breadcrumb.Item>
            <Breadcrumb.Item>发布文章</Breadcrumb.Item>
          </Breadcrumb>
        }
      >
        <Form
          onFinish={onFinish}
          labelCol={{ span: 4 }}
          wrapperCol={{ span: 16 }}
          initialValues={{ type: 1, content: "" }}
        >
          <Form.Item
            label="标题"
            name="title"
            rules={[{ required: true, message: "请输入文章标题" }]}
          >
            <Input placeholder="请输入文章标题" style={{ width: 400 }} />
          </Form.Item>
          <Form.Item
            label="频道"
            name="channel_id"
            rules={[{ required: true, message: "请选择文章频道" }]}
          >
            <Select placeholder="请选择文章频道" style={{ width: 200 }}>
              {channels.map((item) => (
                <Option key={item.id} value={item.id}>
                  {item.name}
                </Option>
              ))}
            </Select>
          </Form.Item>

          <Form.Item label="封面">
            <Form.Item name="type">
              <Radio.Group onChange={changeType}>
                <Radio value={1}>单图</Radio>
                <Radio value={3}>三图</Radio>
                <Radio value={0}>无图</Radio>
              </Radio.Group>
            </Form.Item>
            {imgCount > 0 && (
              <Upload
                name="image"
                listType="picture-card"
                className="avatar-uploader"
                showUploadList
                action="http://geek.itheima.net/v1_0/upload"
                fileList={fileList}
                maxCount={ imgCount }
                multiple={ imgCount > 1 }
                onChange={onUploadChange}
              >
                <div style={{ marginTop: 8 }}>
                  <PlusOutlined />
                </div>
              </Upload>
            )}
          </Form.Item>
          <Form.Item
        label="内容"
        name="content"
        rules={[{ required: true, message: '请输入文章内容' }]}
      >
        <ReactQuill
          className="publish-quill"
          theme="snow"
        />
      </Form.Item>

          <Form.Item wrapperCol={{ offset: 4 }}>
            <Space>
              <Button size="large" type="primary" htmlType="submit">
                发布文章
              </Button>
            </Space>
          </Form.Item>
        </Form>
      </Card>
    </div>
  );
};

export default Publish;
